1987-93 Fox Body Mustang Headlight Switch And Harness Installation Instructions

This headlight switch has a perfect fit, and finish to look and feel just like the OE Ford part, just at a fraction of the cost!

Tools Required

  • Small flat head screwdriver
  • Wire cutters
  • Wire strippers
  • Pliers
  • Heat gun

Installation Instructions

Step 1:
Start the installation by popping the hood, and removing your negative battery cable



Step 2:
Remove the headlight switch from the dash, by releasing the 4 small tabs with the small flat head screwdriver



Step 3:
Disconnect both headlight, and foglight connections from the back of the switch



Step 4:
Cut the old connectors off of the wires using your wire cutters



Step 5:
Using your wire strippers, strip the ends of the wires exposing the copper wire



Step 6:
Grab a butt connector, and cut some heat shrink tubing to length



Step 7:
Slide the butt connector over the factory wiring, and crimp down the connector, and do the same for the other wires



Step 8:
Since the new headlight switch harness is pre-stripped, simply remove the ends on the wires exposing the copper wire



Step 9:
Place all of your heat shrink tubing over the new harness wires



Step 10:
Match all of the color coated wires together, and crimp the butt connector down

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Step 11:
Use a heat gun to shrink down your heat shrink tubing



Step 13:
Reconnect your electrical connections to the back of the headlight switch, and slide the switch back into the dash



Step 14:
Reconnect your negative battery cable, and check all of your fuses



Step 15:
Test for operation, and you're all done!

How To Install Fox Body Mustang Headlight Switch And Harness - How To Install Fox Body Mustang Headlight Switch And Harness

How To Install Fox Body Mustang Headlight Switch And Harness - How To Install Fox Body Mustang Headlight Switch And Harness

How To Install Fox Body Mustang Headlight Switch And Harness - How To Install Fox Body Mustang Headlight Switch And Harness

How To Install Fox Body Mustang Headlight Switch And Harness - How To Install Fox Body Mustang Headlight Switch And Harness

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About the Video

Fox Body Mustang Headlight Switch and Harness Install (87-93 GT, LX)

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Published on 2015-08-04
If your Mustang's headlights don’t work or work intermittently… a good place to start your troubleshooting process is the headlight switch. 5.0Resto offers two OE quality replacement headlight switches for your GT or LX. Both of which match the fit and finish of the original factory piece and is the perfect upgrade for a damaged or malfunctioning headlight switch.

For you GT or LX guys that have done a fog light conversion of some kind, and are experiencing fog light issues.. you’ll want to take a look at the headlight connector located just behind the headlight switch. Overtime the headlight wiring would over-heat with continual use of the fog lights. This overheating issue would cause the plastic headlight connector to melt, therefore causing your fog lights to malfunction.

5.0Resto has you covered, with an OEM style headlight switch connecter. This headlight connector features 6” color coded pigtails, for easy splicing and absolutely ZERO guess work as to which wires go to what!